Millimeter-Wave Modulated-Signal and Error-Vector-Magnitude Measurement With Uncertainty
Catherine A. Remley, Dylan F. Williams, Paul D. Hale, Chih-Ming Wang, Jeffrey A. Jargon, Youngcheol Park
We provide techniques to generate and characterize precision wideband millimeter-wave modulated signals. We use predistortion to obtain a significant improvement in signal quality and an associated reduction in the error vector magnitude (EVM) of the signals generated by an arbitrary-waveform-generator-based source. We adapt a recently developed microwave uncertainty framework to the problem and use it to estimate the uncertainties in the modulated-signal measurements. Models of uncertainties related to all calibration and measurement procedures within the traceability path are included in a sensitivity analysis and Monte Carlo simulations that maintain correlations between time-and frequency-domain errors. We demonstrate EVM values of approximately 1.6% +/- 0.5% for a 1-GSymbol/s 64-state quadrature-amplitude-modulated signal at 44 GHz.
IEEE Transactions on Microwave Theory and Techniques
, Williams, D.
, Hale, P.
, Wang, C.
, Jargon, J.
and Park, Y.
Millimeter-Wave Modulated-Signal and Error-Vector-Magnitude Measurement With Uncertainty, IEEE Transactions on Microwave Theory and Techniques, [online], https://doi.org/10.1109/TMTT.2015.2416180
(Accessed December 11, 2023)